US7650724B2 - Tube with external channel - Google Patents
Tube with external channel Download PDFInfo
- Publication number
- US7650724B2 US7650724B2 US11/080,917 US8091705A US7650724B2 US 7650724 B2 US7650724 B2 US 7650724B2 US 8091705 A US8091705 A US 8091705A US 7650724 B2 US7650724 B2 US 7650724B2
- Authority
- US
- United States
- Prior art keywords
- channel
- tube
- curve
- diameter
- radius
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
- A47C5/043—Metal chairs, e.g. tubular of tubular non-circular cross-section
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
- A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
- E04H15/64—Tent or canopy cover fastenings
- E04H15/642—Tent or canopy cover fastenings with covers held by elongated fixing members locking in longitudinal recesses of a frame
- E04H15/644—Tent or canopy cover fastenings with covers held by elongated fixing members locking in longitudinal recesses of a frame the fixing members being a beading
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0439—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0447—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section circular- or oval-shaped
Definitions
- the invention relates to the field of tubes or pipes. More particularly, the invention relates to a tube with an external channel.
- Tubing is frequently used for building tube frames, such as the frames for biminis and dodgers on boats.
- tube frames include collapsible beach chairs, tents, baby strollers, etc.
- the frame is used to support a fabric structure, such as the dodger enclosure on a boat, the seat and back rest on the chair, etc.
- the tubing is a suitable material for the frame because it is lightweight, yet strong. It is also easily bendable with a pipe bender, so it can be used to construct and shape a frame to fit a particular substructure.
- the fabric has to be fitted over the frame.
- the two ends of the fabric seat are provided with a tube or sleeve that slides over the tubing.
- More complex structures comprise a number of panels, such as two side panels, a front panel, a top panel, and a back panel. Such a complex structure is a boat enclosure called a “dodger.” Because of the need to fit the fabric structure over the frame, the panels are stitched together to form a unitary construction that is fitted over the tube frame. Often, two adjacent panels are stitched together and a sleeve stitched over the seam, so that a section of the tube frame is insertable through the sleeve. This unitary construction creates difficulties because the fabric structure is bulky and heavy, making it difficult to handle. If one panel requires cleaning or repair, the entire structure has to be removed from the frame for delivery to a cleaning or repair facility.
- Another disadvantage of the conventional tube frame is that the fabric often bunches up on the frame, providing an unaesthetic look.
- the bunching up may create folds in the fabric, which promote mildew and growth of mold, because moisture becomes trapped in the folds.
- a tube frame made of such a tube and a means of securing fabric panels smoothly and evenly to the frame.
- such a tube frame that provides an aesthetically pleasing appearance.
- the invention is a metal tube with an external channel that does not distort or collapse when the tube is bent.
- the tube is extruded of anodized aluminum.
- the geometry of the channel is complex and allows the tube to be bent without collapsing, even when bent about a relatively small radius.
- the channel is not circular or rectangular, but of a curved, somewhat teardrop shape.
- the inner hollow core of the tube is somewhat oval in cross-section.
- the tube may have one, two, three or more external channels, depending on its intended use.
- a tongue forms a dividing wall between any two adjacent channels.
- the sections of a frame to which fabric is to be attached are made of the tube according to the invention.
- Individual panels of the fabric are attached to the frame.
- the edge of the panel to be secured to the frame is provided with a contoured, flexible border that is slidingly insertable in and capturable within the channel.
- Suitable materials for providing the border include foam piping material, cord, rope or braid, or other firm materials that will bend around the contours of the frame but are firm enough to remain captured within the channel.
- Individual sliders, such as are used to attach drapes to channel track may also be used. If two panels of fabric are attached to the same section of a two-channel tube, the edge of one panel is inserted into the first channel and the edge of the second panel into the second channel.
- An example of a tube that is particularly well suited for a dodger frame is one that is extruded from 6061-T6 aluminum and anodized. This material provides a tube that is pleasing in appearance and has the desired light weight and high strength for securing heavy fabric on a straight or curved stretch of tube.
- the tube is 1′′ in diameter, with the walls and bridge 1 ⁇ 8′′ thick. A tube of these dimensions can be bent to a radius as small as four inches, without the channels collapsing or distorting.
- the individual panels of fabric are secured to the frame by inserting the edge of the fabric into the external channel.
- the fabric is smoothly and evenly secured to the tube, along straight and curved sections and the finished look is smooth and elegant.
- a portion of the tongue between the two channels remains visible, which provides a clean and contrasting look that is aesthetically appealing.
- the tube according to the invention may also be provided as a telescoping tube.
- An inner or connector tube is slidingly inserted into the hollow tube core of the tube.
- a setscrew or other suitable means is used to secure the connector tube at a particular distance within the tube.
- a feeder or endcap may be used to provide a finished end to the tube and also to help insert the fabric edge into the channel.
- the endcap has a hollow core with a threaded bore, and two external channels with end openings.
- the hollow core and threaded bore align with the hollow core of the tube.
- a screw-in eyeend may be threaded into the threaded bore, for attaching the frame to a boat deck, a wall, or other support structure.
- FIG. 1 is a cross-sectional view of the tube according to the invention, showing the geometry of the channels, the bridge and the tongue.
- FIG. 2 is the cross-sectional view of the tube of FIG. 1 , illustrating with greater detail the radii of the curves that form the channel and the inner hollow core.
- FIG. 3A illustrates a side bend on the tube of FIG. 1 .
- FIG. 3B illustrateates an inside bend on the tube of FIG. 1 .
- FIG. 3C illustrates an outside bend on the tube of FIG. 1 .
- FIG. 4 is a perspective view of a telesoping tube according to the invention.
- FIG. 5A is a frontal view of an end cap.
- FIG. 5B is a side view of the end cap.
- FIG. 6 illustrates a reinforced fabric edge being inserted into a channel.
- FIG. 7 is an illustration of a dodger for a boat, constructed of fabric panels that are individually attached to sections of the tube frame.
- FIG. 1 is a cross-sectional view of a tube 100 according to the invention, showing an inner hollow core 10 and a channel 20 . It is the shape and configuration of the channel 20 that is unique to the invention and it is understood that, depending on the particular intended use, one, two, three, or more channels 20 may be provided in the tube 100 .
- the tube 100 has a tube wall 12 that forms a bridge 14 in the area of the channel 20 .
- the inner hollow core 10 is delineated by a first inner wall section 10 A and a second inner wall 10 B.
- the channel 20 has a complex geometry that is delineated by a first curve 20 A, a second curve 20 B, a first channel arm 20 C and a second channel arm 20 D.
- two channels 20 are provided in the tube wall 12 with a tongue 24 therebetween.
- the two channels 20 are in mirror-reverse juxtaposition to each other and the tongue 24 forms the second curve 20 B and the second channel arm 20 D for both of the channels 20 .
- the tube wall 12 and bridge 14 have a first thickness T 1 .
- the first channel arm 20 C has thickness T 1 at its base and tapers to a second thickness T 2 , which is 1 ⁇ 2 the first thickness T 1 .
- the radius of curvature of the first curve 20 A is significantly smaller than the radius of curvature of the second curve 20 B.
- FIG. 2 shows the radii or diameters of the various curves.
- the diameters of a one-inch overall outside diameter tube will be given here for purposes of illustration only. It is understood that the tube 100 according to the invention is not limited to a one-inch outside diameter tube. A person skilled in the art understands that the radii of the various curves will be adapted proportionally to form tubes according to the invention of other diameters.
- D 10 A is the overall diameter of the tube: one inch overall outside diameter and 3 ⁇ 4 inch overall inside diameter of the first inner wall section 10 A.
- D 10 B defines the curve of the second inner wall section 10 B, which is 11 ⁇ 8 inch in diameter.
- D 10 C defines the transition curve 10 C between the first inner wall section 10 A and the second inner wall section 10 B.
- D 20 E defines the curvature 20 E of the first channel arm; D 20 A defines the diameter of the first curve 20 A; and D 20 B the diameter of the second curve 20 B.
- D 20 D defines the curvature of the outer end of the second channel arm
- FIGS. 3A-3C show the tube 100 with a 90 degree bend in a 4-inch radius, with a side bend, an inside bend, and an outside bend.
- the channel 20 does not distort to any significant degree with any of these bends.
- FIG. 4 is a perspective view of a telescoping tube 200 according to the invention, showing an inner tube 160 , also called a connector, slidably inserted into the hollow core 10 of the tube 100 .
- Setscrews are shown as a means 162 of fixing the telescoping distance of the connector 160 relative to the tube 100 .
- FIGS. 5A and 5B are views of an end cap 180 that is used to close the end of the tube 100 .
- the end cap 180 has a central throughbore 184 .
- a threaded bore 182 is provided at the beginning of the throughbore 184 .
- An external channel 186 is formed in the endcap 180 .
- the number of external channels 186 and their alignment on the endcap 180 correspond to the number of external channels 20 and their alignment on the tube 100 with which the endcap 180 is to be used.
- FIG. 6 illustrates use of the endcap 180 as a feeder, showing a panel P of fabric being inserted into a tube 100 through the endcap 180 .
- the external channel 186 in the endcap 180 is preferably provided with a feeder opening, which facilitates insertion of the panel P.
- a fabric attachment means 170 is attached to an edge of the panel P as shown and slidingly inserted into the external channel 186 and then into the external channel 20 .
- the fabric attachment means 170 is a foam piping enclosed within a sleeve of the fabric.
- Other suitable fabric attachment means include rope, chord, or braid, individual sliders, or other means that are attachable to the panel P and capturable by the channel arms 20 C and 20 D. As shown in FIG.
- the fabric attachment means 170 is circular in diameter and does not correspond precisely to the shape of the channel 20 . Nevertheless, the diameter is great enough that it remains captured in the channel 20 by the first and second channel arms 20 C and 20 D.
- frame attachment means 190 which is threaded into the threaded bore 182 on the endcap 180 .
- Illustrative of a suitable frame attachment means 190 is the endeye shown in this embodiment.
- the frame attachment means 190 is any suitable device that enables the frame 300 to be attached to the deck of a boat, to a wall, or other structural support.
- FIG. 7 is an illustration of a boat enclosure 300 , such as a dodger, constructed of a frame made of the multiple sections 100 A, 100 B, . . . of the tube 100 .
- Panels P of fabric are secured to the frame.
- a first panel P 1 and a second panel P 2 are secured in the channels on a first section 100 A. Only the tongue 24 of the tube section 100 A is visible on the outside of the enclosure 300 .
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Tents Or Canopies (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/080,917 US7650724B2 (en) | 2005-03-11 | 2005-03-11 | Tube with external channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/080,917 US7650724B2 (en) | 2005-03-11 | 2005-03-11 | Tube with external channel |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060201104A1 US20060201104A1 (en) | 2006-09-14 |
US7650724B2 true US7650724B2 (en) | 2010-01-26 |
Family
ID=36969319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/080,917 Expired - Fee Related US7650724B2 (en) | 2005-03-11 | 2005-03-11 | Tube with external channel |
Country Status (1)
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US (1) | US7650724B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120132603A1 (en) * | 2007-01-03 | 2012-05-31 | Skyline Displays, Inc. | Multi-configurable tubular display system |
US20130062296A1 (en) * | 2010-05-25 | 2013-03-14 | Patricia Alida Roberts | Portable clothes line |
US20160281885A1 (en) * | 2015-03-27 | 2016-09-29 | Taylor Made Group, Llc | Tubing with internal channel |
US20170356187A1 (en) * | 2014-12-05 | 2017-12-14 | Normalu | Lighting double rail of tubular shape and three dimensional structure comprising such a rail |
US20180356009A1 (en) * | 2015-12-18 | 2018-12-13 | Sandvik Materials Technology Deutschland Gmbh | A method for manufacturing a tube of metal as well as a tube of metal |
US10378206B2 (en) * | 2014-09-03 | 2019-08-13 | Normalu | Luminous tubular wall plate for three-dimensional structure and three-dimensional structure comprising such a wall plate |
US20210147036A1 (en) * | 2019-11-18 | 2021-05-20 | Matthew D. Muzzio | Universal channel rod adjustable extension apparatus |
US11197550B2 (en) * | 2019-01-30 | 2021-12-14 | Zhejiang Yotrio Group Co., Ltd. | Rattan chair back connector, connection assembly, and rattan chair |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8051868B2 (en) * | 2008-03-17 | 2011-11-08 | Johnson Outdoors Inc. | Tent rafter end cap and tent incorporating same |
WO2012012649A2 (en) * | 2010-07-22 | 2012-01-26 | Slingfin, Inc. | Improved tent assembly |
EP2801683B1 (en) * | 2013-05-06 | 2016-04-27 | Opera GmbH & Co. KG | Beading rail element |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120132603A1 (en) * | 2007-01-03 | 2012-05-31 | Skyline Displays, Inc. | Multi-configurable tubular display system |
US20130062296A1 (en) * | 2010-05-25 | 2013-03-14 | Patricia Alida Roberts | Portable clothes line |
US10378206B2 (en) * | 2014-09-03 | 2019-08-13 | Normalu | Luminous tubular wall plate for three-dimensional structure and three-dimensional structure comprising such a wall plate |
US20170356187A1 (en) * | 2014-12-05 | 2017-12-14 | Normalu | Lighting double rail of tubular shape and three dimensional structure comprising such a rail |
US10443236B2 (en) * | 2014-12-05 | 2019-10-15 | Normalu | Lighting double rail of tubular shape and three dimensional structure comprising such a rail |
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US10442503B2 (en) * | 2015-03-27 | 2019-10-15 | Taylor Made Group, Llc | Tubing with internal channel |
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US10724658B2 (en) * | 2015-12-18 | 2020-07-28 | Sandvik Materials Technology Deutschland Gmbh | Method for manufacturing a tube of metal as well as a tube of metal |
US11197550B2 (en) * | 2019-01-30 | 2021-12-14 | Zhejiang Yotrio Group Co., Ltd. | Rattan chair back connector, connection assembly, and rattan chair |
US20210147036A1 (en) * | 2019-11-18 | 2021-05-20 | Matthew D. Muzzio | Universal channel rod adjustable extension apparatus |
Also Published As
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---|---|
US20060201104A1 (en) | 2006-09-14 |
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